Senior UI Developer (React/Full Stack) – with Java & Python exposure

Crisil; Greater London; On-site; GBP 55,000 - 75,000; Full time

Job summary

Crisil is seeking a talented full stack developer with expertise in finance processes within investment banking. The role involves designing and developing responsive front-end applications with React and TypeScript, collaborating with backend developers, and maintaining real-time dashboards.

Key skills include strong front-end web technologies knowledge, experience with Agile methodologies, and familiarity with tools like GitHub Copilot. This opportunity offers a chance to work in a dynamic environment delivering scalable applications for trading desks.

Qualifications

• Experience collaborating with technical and non-technical partners.
• Strong experience with front-end web technologies.
• Knowledge of Agile/Scrum development practices.

Responsibilities

• Design and develop high-performance front-end applications.
• Build and maintain real-time dashboards for market data.
• Create reusable component libraries and design systems.
• Collaborate with backend developers for API integration.
• Support data processing scripts written in Python.

Skills

React

TypeScript

Redux Toolkit

AG Grid

Storybook

Material UI

GraphQL

REST API consumption

SQL

Java

Python

GitHub Copilot

Agile/Scrum

Jira

Confluence

Job description

We are looking for a talented and experienced full stack developer with experience in Finance process within Investment banking for one of our global investment banking clients

• Primary task would be to Design and develop responsive, high-performance front-end applications using React 18 and TypeScript for trading desks and risk reporting teams.
• Build and maintain real-time dashboards displaying live market data, PnL, and risk metrics — handling WebSocket data feeds efficiently.
• Create reusable component libraries and design systems to ensure consistency across multiple front-office applications.
• Write clean, maintainable code with proper unit and integration tests; participate in peer code reviews.
• Collaborate with Java backend developers to understand REST API contracts, troubleshoot integration issues, and make minor backend fixes or config changes when required.
• Support data processing scripts and automation tasks written in Python, data transformation and feeding to front-end service.
• Use GitHub Copilot and AI-assisted tools to improve coding speed and quality; stay current with AI tooling trends relevant to front-end development.
• Work in an Agile/Scrum team, attend sprint planning, and deliver features iteratively.
• Collaborate with design team and other engineers to identify usability concerns
• Working with modern agile software development methods
• Overall the work will be flexible based on client requirements.

Skill Sets

• Have experience collaborating with non-technical and technical partners and can communicate accordingly.
• Strong experience with front-end web technology like
• Redux Toolkit, AG Grid, Storybook, Material UI, GraphQL,
• WebSocket / REST API consumption, SQL
• Java and Python working knowledge is preferred
• Familiarity with GitHub Copilot and AI-assisted development workflows (e.g. using AI to write tests, refactor code, generate boilerplate)
• Experience on Agile / Scrum, Jira & Confluence
• Experience on participating in end-to-end development lifecycle in a rigorous test driven software development environment
• Experience on developing and delivering scalable applications
• Possesses good understanding of structured products, exotics and derivatives pricing
• Experience of working Risk management reporting UI